Askicnok to iiimski



Specicatlon'tormlng part of Letters Patent No. 11,858,4 dated October 31, 1854; Application for i l f Reissue, in two divisions, tiled January 8, 1874, 4

uiluiiir -sHiNGLE-MACHINE.

To'uI whom if mny con/ern ing a part. of this specification. lt`i'fiue l hev ing u top view of my improved sliingle-sa\\ ing inac iine; Fig. 2. :i vertical section in the line ala of Fig. l. and Fig. Il a vertical se Vtion in the line l; l, of Fig. l.

Similar letters indicate like part.` in all the Figures.

The lii'st general feature of ni invention eonrisls in a rotating carriage arranged in connection with tahles. int-lined in opposite directions, and with circular saws, in such n manner that the bolts of wood, placed in said carriage. will. one after the other. he continually operated upon. cutting the thiol: end of a shingle liist froiu one end ol" :i holt, and the thick end of he next in succession, from the opposite end of said holt. und thus alternate. until the holt is sawed down as thin as it can he safely operated' lupon.

The Second feature of my invention consists in presenting7 the side of a holt of wood to the saws. intead of the end thereof. for the purpose of prediieiiner thereby shingles with much smoother surfaces than can he produced hy advancing the end of the holt to the saw in the usual manner.

The rotary carriage. which receives and carries forward the blocks oi' wood io he o erated upon. is composed of the central disk D. E, and the outer annular `iortion F, which are connected to each otlier hy the serieL of curved plates G. (i. The said 'carriage rests and rotates upon the bearing support P', which is secured to the transverse supporting beams Q, R, as shown in Figs. 2,-and 3. Motion is imparted to the carriage by means of teethwhich radiate from the outer periphery of F. andfit into the teeth of the driving pinion le. The saws o, o, are placed opposite ea'ch other immediately below the. open space hetween the central and annular portions of the carriage. and with their upper surfaces parallel with and near to the under sides of said portions of the carriage. as shown in Fig. 3. Between the saws are placed the tailles p, p, which. it will he pereei ved,' in. cline in opposite directions, with relation to the carriage; one iizcliiiing inward and the other outward. T he hlm-lts to be operated upon, are placed in the open space between.

the curh'E, (which from the peripheryr of the disk 1),) and the annular portion It,

of the carriage; and are. secured iii their.

.i. iinowN. -5

"fummo STATES incre-N1* onirica.

eurh It). hy weighted levels Il. H, which are jointed to the. upper edge of E, and connected to the said teeth i. as shown iu the drawings. 'ilie tailles n. 11. can he given ditierent inclinations and positions, by means of the set screws (l, q, which sustain them. After a shingle has been sawed from a block, the hloclc is automatically detached from its fastenings. placed in a proper position and refastened, to be again operated upon, in the following manner. inclined planes l, l, are secured to the ends of the plate C. which is made fast to the upper end of the central carriage hearing 1. The said inclined planes Z, l, are in such positions with relation to the weighted levers H. H, that the inward projections n'. n, upon the inner ends said levers, will come in contact with and pass over said planes: thereby elevating the levers and drawing inward the fastening pins 1'. i. to which the legs s. s. of said levers are connected. When the pins 5,1', are drawn inward. they draw the blocks from the outer Series of teeth in the flange r, at the same time that theyaiie themselves drawn out of the blocks; which allows the blocks to fall upon the tables p, p. when they are in proper position to be again operated upon by the saws: and when the hlncks have passed heyoud the influence of the inclined planes l, 1,'

(being forced forward by the blocks in their rear,l the levers. 'as they full again upon the disk D. will force outward the teeth i', i',

sis

10o into the blocks, andat the same time force the blocks themselves outward, so that the no" A The blocks ure so place( ut the fastening teeth uct upon the ends of the fibers of the wood, and consequently this will cause the' saws to act against the sides of said fibers; which causes a much smoother surface to i i, be produced, than when the saws act against combined with inclin the ends of the fibers of the wood, m the usual manner.

Fig. 4, represents u method of handing the various movements of my machine to each other und to the driving pulley.

In Fig. 1, z, inclosed in red lines, represents'the position of a block resting' upon one of the tables p, just at the moment that it has been detached from its fastening teeth. y, inclosed in red lines in said ligure represents the position of n block, firmly secured and fastened by the double series of teeth. just before it is brought in contact with one of the saws.

What I claim as my invention and desire to secure by Letters Patent, is

l. Placing the blocks to be sawed into shingles, in a rotatin carriage which is tables p, p, (or u [Fmsr PRINTED 1913.]

single tabe,\) und with uws 0,0; (or a single saw) in such n manner that'thc blocks will be cnrried continuously forward und be au i tomuticully operated upon, to convert them.

purpose of giving them smoother surfaces, than can be l'nmluced by the usnul mode of suwmg,substantially us herein set forth.

The above specification of my improved nmchinc for sowing shingles, signed und witnessed this 8th ,day of Augt. 1854.

HARRY Il. EVARTS.

Witnesses:

Z. C. Ronms, G. W. ADAMS. 

